We used to use soy meal to add protein but the crop yields of corn are about 3X that of soy.

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Marine biologists on board the ship closely monitored the fish which were fed a sustainable diet of soy oil, soy meal and other sustainable proteins.

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Meanwhile over the past 40 years new milk-based or milk-like products such as yogurt, soy milk, muscle repair formulas, and meal replacements became wildly popular.

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